Demonstrator carry caskets, crosses, anti-war banners and flags as they march at Pennsylvania Avenue in Washington DC, U.S.

Protest demonstration in Washington DC, United States against United States' involvement in the Vietnam War. The protestors march at Pennsylvania Avenue. A demonstrator carries a cross, others carry caskets. The demonstrators move ahead forming a human chain. The crowd carries large anti-war banners, Viet Cong flags and Red flags.